Welding electrode



c. J. HOLSLAG 2,025,206 WELDING I ELECTRODE Filed June 2, 1934 2Sheets-Sheet l ism a; a 6 a P4 fag INVENTOR 4M amzfgz BY I a. ATTORNEYDec. 24, 1935,

C. J. HOLSLAG WELDING ELECTRODE Filed June 2, 1934 2 Sheets-Sheet 2INVENTOR C dz J ATTORNEY Patented Dec. 24, 1935 PATENT OFFICE WELDINGELECTRODE Claude r. Holslag, South Orange, N. 5., assignor to ElectricArc Cutting & Welding Company,

Newark, N. J.

Application June 2', 1934, Serial No. 723,541

16 Claims.

This invention relates to an electrode used for welding purposes, andwhile it may be used in gas-flame welding, it is especially advantageousfor use in electric arc welding, cutting or the 2 like. 1

The Flood et al. Patent 1,496,930 points out clearly and in considerabledetail the advantages and desirability of having a less amount of metalat the are starting end of the electrode than at iii the handle end, andsince reference may be had to the Flood et al. patent, it is not deemednecessary herein to repeat these advantages, but simply to mention thatmy present application is directed to certain improvements and/ormodifications of the Flood et a1. electrode The drawings attached heretodisclose various ways in which the advantages of the Flood et al.electrode may be secured. In the drawings:

Figure 1 is a perspective view of an electrode suitable for weldingpurposes.

Figure 2 is an enlarged view of a section of an electrode which may hethat shown in Figure 1.

Figure 3 is a view of the right-hand end of Figure 2 and may he referredto as the are starting end oi the electrode.

Figure 4 illustrates a left-hand end view and a mid-sectional viewbetween the two ends of the electrode of Figure 2.

30 Figure 5 is a view similar to Figure 2, but of a modified form ofelectrode.

Figure 6 is a view of the right-hand end of Figure 5.

Figure l is a view of the left-hand end and a central sectional viewthrough the electrode of Figure 5;

Figure 8 is a further modified form of electrode.

Figure 9 is a view of the right-hand end of Figure 8.

40 Figure 10 is a view of the left-hand end and a central sectional viewthrough the electrode of Figure 8.

Figure 11 is a further modified form of electrode.

Figure 12 is a view of the right-hand end of Figure 11.

Figure 13 is a left-hand end view and a central sectional view throughthe electrode of Figure 11.

Figure 14 is a further modified form of electrode.

Figure 15 is a view of the right-hand end of Figure 14. v

Figure 16 is a left-hand end view and a central sectional. view throughthe electrode of Figure 14.

Figure 1'? is a further modified form of electrode.

Figure 18 is a right-hand end view of Figure 17. Figure 19 is aleft-hand end view and a central sectional view through the electrode ofFigure 17. 5 Figure 20 is a further modified form of e1ectrode.

Figure 21 is a view of the right-hand end of Figure 20.

Figure 22 is a left-hand end view and central id sectional view throughthe electrode of Figure 20.

Figure 23 is a further modified form of electrode.

Figure 24 is a right-hand end view of Figure 23.

Figure 25 is a left-hand end view and central 15 sectional view throughthe electrode of Figure 23.

Figure 26 shows a further modified form of electrode in which thegrooves or projections thereon may be spirally arranged.

Figure 27 is a further modified form of elec- 29 trode.

Figure 28 is a right-hand end view of Figure 27. Figure 29 is a view ofthe left-hand end and a central sectional view of the electrode of Fig-Figure 301s a further modified form of electrode.

Figure 31 is a right-hand end view oi Figure 30.

Figure 32 is a left-hand end view and central sectional view through theelectrode oi Figure 30.

Figure 33 is a view of a still further modified form of electrode;

'Figure 34 is a right-hand end view of the form shown in Figure 33.

Figure 35 is a left-hand end view and central sectional view through theelectrode of Figure 33."

Figure 36 is a view of a further modified form of electrode which isadapted to be engaged by the holder at the central part of theelectrode.

Figure 3'7 is a cross-sectional view through the central portion of theelectrode of Figure 3G.

Figure 38 is a right-hand end view and crosssectional view between thecentral or handle part of the electrode and the right-hand end of theelectrode of Figure 36.

Figure 39 is a left-hand endview and sectional view half-way between theleft-hand end and the central or handle portion of the electrode 01'Figure 36.

Figure 40 is a longitudinal section through a further modified form ofelectrode on a compressed or much shortened scale.

Figure 41 is a. modification or the electrode shown in Figure 40.

Figure 42 is a view of another form of elec- Figure 43 is an end view ofa blank which may be used in forming the electrodes of Figures InFigures 1 to 35 inclusive, the electrode l is of substantially uniformdiameter throughout its length as indicated by the circles 2, 3 and 3,the circle 2 illustrating the boundary of the extreme left-hand orhandle end of the electrode 5. The electrode 5 is provided with aplurality of flutes, notches or grooves 5 which increase in area fromthe handle end 2 to the are starting end Q, and it will be noted thatthe grooves 5 within the periphery of the circle 3,- taken substantiallyat a point midway between the ends of the electrode, are of much lessarea than at the are starting end. This means that the amount of metalat v the are starting end is much less than at any other section betweenthe are starting end and the handle end. The same applies to the'variousother figures.

The electrode of Figures 5 to 7 inclusive is provided with four groovesor notches difierent in shape than the grooves 5 shown-in Figures 3 andi.

In Figures 9 and 10 inclusive the notches 5 are similar to those shownin Figure 6, but are only three in number.

In Figure 12 the electrode is provided with notches or grooves 6 similarto those shown in Figure 9, but twice as many being indicated.

In Figures 14 to 16 inclusive, the electrode is provided with adifferently shaped groove i.

In Figures 17 to 19 inclusive, the electrode is square, having a square,tapering groove 8 on each face.

hi Figures 20 to 22, the electrode is rectangular in shape havinggrooves 8 similar to those shownin Figure 18.

In Figures 23 to 25, theelectrode is shown triangular in shape and hasgrooves 8 similar to those shown in Figures 18 and 21.

In Figure 26, the grooves or notches 9 may be of any desired shape andare arranged as a spiral helix from end to end of the electrode.

' handle, and the welding operations may be carried out from'either endtoward the center, and

the opposite end portions may be the same or a difierent arrangement offlutes, grooves or notches, the ones on the left of the central portionit being similarto ill of Figure 28, while those on the right may besimilar to l of Figure 15. In drawing or rolling the'electrodes, themetal may be forced up into ridges, but this gives a similar efiect asforming the'electrode with flutes,-

grooves or notches.

Figure 40 is a sectional view through an electrode having a cylindricalexterior, the ends of the electrode being indicated by the numerals 2and 3 as in Figures 3 and 4, but which has a tapered internal bore l5,thereby giving a less amount of metal at the are starting end 4, and agreater amount of metal at the handle end 2. In Figure .1, the handleend lb of the electrode trode using certain features of Figures 40 and41.

is larger than the are starting end 3, while the bore i6 is of uniformdiameter.

In Figure 42, the handle end H is larger than the are starting end 5with a greater amount of metal at the handle end, while the bore i8 is 5larger at the are starting end, so that if the interior of the electrodeis filled with flux or cutting material, itwill give the desired effectas in the other types of electrodes. This applies also to Figure 40 asregards the flux. 10

In Figure 43, the electrode is shown as made up of strip metal which maybe rolled to the desired thickness to conform to the sections shown inFigures 4.0 to 42 inclusive, this sheet [9 being rolled preferablycylindrical so that the edges 15 substantially meet on the line 20.

While these various types of electrodes will give the results andadvantages set forth in the Flood et al. patent, the grooves, flutes ornotches or equivclusive, it may fill the grooves to the peripheral 39boundary as represented by the circles 2, 3 and 4; when used inthe formsshown in Figures 40, i1 and 42, the flux material preferably fills theinterior of the rod.

What I claim is: 85 l. A welding electrode consisting of a metal rodhaving groove-like formations therein of larger area at one end of therod than at other longitudinal portions of the rod.

2. A welding electrode consisting of a metal rod 40 of substantiallyuniform diameter throughout its length but having groove-like formationstherein tapering away from one end of the rod.

3. A welding electrode consisting of a metal rod having taperedgroove-like formations therein 45 from one end of the rod to the other.

4. A welding electrode consisting of currentconducting material havinggroove-likeformations therein of larger area at one end of the electrodethan at other longitudinal portions of the electrode.

5. A welding electrode consisting of currentconducting material ofsubstantially uniform di= ameter throughout its length but havinggroove-- like formations therein tapering away from one end of the rod.

6. A welding electrode consisting of currentconducting material havingtapered groove-like formations therein from one end of the electrode tothe other. i

7. In an electric arc welding system including an electrode, means forpresenting at the are starting end of the electrode an amount ofmaterial less than at other portions of the electrode, said meanscomprising groove-like formations in the surface of the electrodematerial, said grooves diminishing in area away from the are startingend of the electrode.

'8. A welding electrode as set forth in claim 7, further characterizedin that the groove-like formations are spirally arranged longitudinallyof the length of the electrode.

9. A welding electrode asset forth in claim 7, further characterized inthat the groove-like foraceaace stations are substantially filled withwe or mere materials which will assist the arc operations.

10. A welding electrode as set forth in claim 7, further characterizedin that the groove-like tormations are spirally arranged longitudinallyoi the length of the electrode, and then at least one of the grooves issubstantially filled with one or more materials which will aid the arcoperatimo ii. A welding electrode consisting 02 .a metal rod havinggroove-like formaticns therein cl larger area at one end of the rod thanat other longitudinal portions of the rod, at least one of saidgroove-like formations being substantially filled with one cr morematerials which will asdst the arc operations.

12. in an electric arc welding system including an electrode, means forpresenting at the are starting end of the electrode and continuouslytoward the handle end 0! the electrode as the clean trode is consumed anamount 0! material less than at other portions of the electrode moredistant from the are, said means comprising a formation of the electrodematerial such that at least one space is formed between portions oi thematerial longitudinally of its length, said material Facing in amount atone end at the electrode than at the other.

it. A welding and/or cutting electrcde as set forth in claim 12, furthercharacterized in that said space is wholly within the electrodematerial.

14. A welding and/or cutting electrode as set forth in claim 12, iurthercharacterized in that said space is oi greater crass-sectional area atthat end cf the electrode having the least amount of material therein.

iii. A welding and/or cutting electrode as set iorth in cl iii, inxthercharacterized in that said space is wholly within the electrodematerial, and further characterised in that the material of theelectrode tapers in amcimt from one end to 15 the ctherc 16. A weldingand/or cutting electrode as set iorth in claim 12. further characterizedin that said space is of greater cross-sectional area at that end of theelectrode having, the least amount 2% of material therein, said spacebeing filled with one or more materials which will assist the arcoperations.

CLAUDE J. HOISLAG.

